Alert archive / Minnesota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 182, NWS Twin Cities, MN

August 18, 2019Blue Earth County, Faribault County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 18, 2019, 12:03 AM CDT for Blue Earth County, Faribault County, Minnesota. It was in force for 57 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 18, 2019, 12:03 AM CDT (05:03 UTC)
Expired
Aug 18, 2019, 1:00 AM CDT
In force
57 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Blue Earth County, MN, Faribault County, MN

The radar

The Minneapolis radar (KMPX), 109 km from the middle of the area, began a volume at 05:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Aug 18, 12:20 AM CDTTSTM WND DMGWinnebago, MN6-8 INCH DIAMETER BRANCH DOWN.
Aug 18, 12:33 AM CDTTSTM WND DMGMapleton, MNTREE DAMAGE IN MAPLETON AND DAMAGE TO TRANSFORMER - DELAYED REPORT, TIME ESTIMATED FROM RADAR.
Aug 18, 12:43 AM CDTTSTM WND DMG1 Ssw Mankato, MNA COUPLE TREES DOWN IN MANKATO - DELAYED REPORT, TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 17, 10:16 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.1 hours before the alert went out and 108 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Minneapolis, MN at 00:00Z on 2019-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2019-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1807 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

735 
WUUS53 KMPX 180503
SVRMPX
MNC013-043-180600-
/O.NEW.KMPX.SV.W.0182.190818T0503Z-190818T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1203 AM CDT Sun Aug 18 2019

The National Weather Service in The Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Faribault County in south central Minnesota...
  Blue Earth County in south central Minnesota...

* Until 100 AM CDT.

* At 1203 AM CDT, a severe thunderstorm was located over Truman, or
  15 miles north of Fairmont, moving east at 55 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Mankato, North Mankato, Blue Earth, Lake Crystal, Eagle Lake,
  Mapleton, Winnebago, St. Clair, Minnesota Lake, Elmore, Good
  Thunder and Amboy.

This includes the following highways...
 Interstate 90 between mile markers 113 and 136.
 U.S. Highway 14 between mile markers 133 and 136.
 U.S. Highway 169 between mile markers 1 and 54.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4384 9425 4385 9436 4413 9437 4417 9409
      4416 9405 4418 9401 4419 9392 4407 9377
      4350 9376 4350 9424
TIME...MOT...LOC 0503Z 258DEG 47KT 4386 9445 

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

JRB
3 follow-up statements
248 
WWUS53 KMPX 180527
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1227 AM CDT Sun Aug 18 2019

MNC013-043-180600-
/O.CON.KMPX.SV.W.0182.000000T0000Z-190818T0600Z/
Faribault MN-Blue Earth MN-
1227 AM CDT Sun Aug 18 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR FARIBAULT AND BLUE EARTH COUNTIES...

At 1227 AM CDT, severe thunderstorms were located along a line
extending from Lake Crystal to near Good Thunder to near Frost,
moving east at 55 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Mankato, North Mankato, Blue Earth, Lake Crystal, Eagle Lake,
Mapleton, Winnebago, St. Clair, Minnesota Lake, Elmore, Good Thunder
and Amboy.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4385 9426 4393 9428 4413 9437 4417 9409
      4416 9405 4418 9401 4419 9392 4407 9377
      4350 9376 4350 9424 4384 9425 4384 9426
TIME...MOT...LOC 0527Z 265DEG 46KT 4413 9421 4405 9411 4397 9404 4364
9396

TORNADO...POSSIBLE
HAIL...1.00IN
WIND...60MPH
 
$$

JRB
835 
WWUS53 KMPX 180544
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1244 AM CDT Sun Aug 18 2019

MNC013-043-180600-
/O.CON.KMPX.SV.W.0182.000000T0000Z-190818T0600Z/
Faribault MN-Blue Earth MN-
1244 AM CDT Sun Aug 18 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR FARIBAULT AND BLUE EARTH COUNTIES...

At 1243 AM CDT, severe thunderstorms were located along a line
extending from near Mankato to St. Clair to Pemberton to near Wells,
moving east at 55 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Public reported branches down in Winnebago.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Mankato, North Mankato, Blue Earth, Lake Crystal, Eagle Lake,
Mapleton, St. Clair, Minnesota Lake, Elmore, Good Thunder, Bricelyn
and Pemberton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4396 9412 4415 9425 4416 9416 4417 9408
      4416 9405 4416 9403 4418 9399 4419 9392
      4407 9377 4350 9376 4350 9422 4374 9410
TIME...MOT...LOC 0543Z 258DEG 47KT 4417 9394 4409 9384 4401 9377 4368
9369

HAIL...1.00IN
WIND...60MPH
 
$$

JRB
186 
WWUS53 KMPX 180559
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1259 AM CDT Sun Aug 18 2019

MNC013-043-180609-
/O.EXP.KMPX.SV.W.0182.000000T0000Z-190818T0600Z/
Faribault MN-Blue Earth MN-
1259 AM CDT Sun Aug 18 2019

...THE SEVERE THUNDERSTORM WARNING FOR FARIBAULT AND BLUE EARTH
COUNTIES WILL EXPIRE AT 100 AM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 500 AM CDT for
south central Minnesota.

LAT...LON 4396 9412 4415 9425 4416 9416 4417 9408
      4416 9405 4416 9403 4418 9399 4419 9392
      4407 9377 4350 9376 4350 9422 4374 9410
TIME...MOT...LOC 0559Z 258DEG 47KT 4421 9365 4413 9356 4405 9349 4372
9341

$$

JRB

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 17, 7:04 PM CDTSpecial Weather StatementMPXStevens56 min
Aug 17, 7:15 PM CDTSpecial Weather StatementMPXLac qui Parle45 min
Aug 17, 7:59 PM CDTSevere Thunderstorm WarningMPXLac qui Parle, Swift31 min
Aug 17, 8:06 PM CDTSpecial Weather StatementMPXChippewa, Douglas, Lac qui Parle, Pope, Stevens, Swift and 1 more54 min
Aug 17, 8:13 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle47 min
Aug 17, 9:01 PM CDTSpecial Weather StatementMPXChippewa, Kandiyohi, Yellow Medicine59 min
Aug 17, 9:47 PM CDTSpecial Weather StatementMPXKandiyohi, Meeker, Morrison, Renville, Stearns58 min
Aug 17, 10:32 PM CDTSpecial Weather StatementMPXCarver, McLeod, Sherburne, Wright58 min
Aug 17, 11:26 PM CDTSevere Thunderstorm WarningMPXBrown, Watonwan49 min
Aug 17, 11:28 PM CDTSevere Thunderstorm WarningMPXMartin62 min
Aug 17, 11:46 PM CDTSpecial Weather StatementMPXRedwood44 min
Aug 18, 12:11 AM CDTSpecial Weather StatementMPXNicollet49 min
Aug 18, 12:34 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Waseca41 min
Aug 18, 12:39 AM CDTSevere Thunderstorm WarningMPXFaribault, Freeborn36 min
Aug 18, 12:51 AM CDTSpecial Weather StatementMPXMartin, Watonwan54 min
Aug 18, 12:58 AM CDTSpecial Weather StatementMPXLe Sueur, Rice47 min
Aug 18, 1:02 AM CDTSpecial Weather StatementMPXFreeborn, Steele43 min
Aug 18, 1:05 AM CDTSevere Thunderstorm WarningMPXFreeborn, Steele25 min
Aug 18, 1:19 AM CDTSpecial Weather StatementMPXGoodhue41 min
Aug 18, 1:39 AM CDTSpecial Weather StatementMPXCarver, Hennepin, Ramsey2 hr
Aug 18, 2:06 AM CDTAreal Flood WarningMPXAnoka, Carver, Hennepin, Ramsey114 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2019Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.